Swift EXC_BAD_INSTRUCTION

Question

所以我试图在本地保存用户设备上的一些东西。当我打开崩溃它的应用程序时，我遇到了错误。错误发生在这块代码上 -

var allInformationByDate = [
"2016-08-13": DayData(sales: 0, doorsKnocked: 0, milesWalked: 0.00, hoursWorked: 0.00)
]

extension NSUserDefaults {
  func setDayDataDictionary(dayData : [String: DayData], forKey key: String) {
    var result = [String : [String: AnyObject]]()
    for (key, value) in dayData {
        result[key] = ["sales": value.sales, "doorsKnocked" : value.doorsKnocked, "milesWalked": value.milesWalked, "hoursWorked": value.hoursWorked]
    }
    self.setObject(result, forKey: key)
  }
}


class ViewController: UIViewController {

  override func viewDidLoad() {

    var allInfoByDateDefault = NSUserDefaults.standardUserDefaults()

      if (allInfoByDateDefault.valueForKey("allInfoByDateRecord") != nil) {
      allInformationByDate = (allInfoByDateDefault.valueForKey("allInfoByDateRecord") as? [String: DayData])!
      }

  }

   func updateInterface() {
        NSUserDefaults.standardUserDefaults().setDayDataDictionary(allInformationByDate, forKey: "allInfoByDateRecord")
      }

}

＆＃34; allInformationByDate =（allInfoByDateDefault.valueForKey（＆＃34; allInfoByDateRecord＆＃34;）上的错误为？[String：DayData]）！＆＃34;专线说：

Thread 1: EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)
Will never be executed

原始问题，我已经实施了Vadian的建议：Swift: Cannot convert value of type '[String : DayData]' to expected argument type 'AnyObject?'

请帮忙！